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[ogl] 设置裁减区域

2009-04-16 23:05:25| 分类： 3d | 标签： |举报 |字号大中小订阅

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Scissor Test
设置一个 window rect，让绘制的内容只出现在此区域上。
如：
glEnable(GL_SCISSOR_TEST);
glScissor(100, 100, 200, 200);

D3D scissor test
http://msdn.microsoft.com/en-us/library/bb147354(VS.85).aspx

GL scissor test 可能带来的问题
http://anirudhs.chaosnet.org/blog/2006.03.04.html

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